Submittal Sheet

ManualsBrandsBell & Gossett ManualsCirculator PumpsTC-1, Automatic Timer Kit for NBF Circulator Pump

SUBMITTAL

A-128D

JOB: REPRESENTATIVE:

UNIT TAG:

ORDER NO.

DATE:

ENGINEER:

SUBMITTED BY:

DATE:

CONTRACTOR:

APPROVED BY:

DATE:

Automatic Timer Kit

Model TC-1

Aquastat

Models: AQS-1/2, AQS-3/4

DESCRIPTION

TC-1 AUTOMATIC TIMER KIT -

To increase the overall efficiency of a

hot water recirculation system, the TC-

1 timer control kit can be

installed for use on any B&G NBF/NRF/SSF/PL and most 3-

piece

circulators. The TC-

1 timer control is programmable to turn the

circulator ON and OFF automatically at preset times. This permits the

user to have the pump circulate hot water only during those times

when high usage can be expected throughout the day.

AQS-1/2 and AQS-3/4 AQUASTAT -

are designed to thermostatically

turn any B&G NBF/NRF/SSF circulator ON and OFF. The AQS-

1/2 or

AQS-3/4 will switch the pump OFF at 120ºF (48.9ºC) and ON at 100º

(37.8º

C). The aquastats are available in separate models that will

sense the temperature for either 1/2" or 3/4" copper pipe.

AUTOMATIC TIMER KIT and AQUASTAT COMBINATION -

The

automatic timer and aquastat kits can be used in combination. When

they are used together, the pump will only circulate water when the

ON time conditions are met and when water temperature is low

enough to cause the aquastat to switch ON.

OPERATIONAL LIMITS

TC-1 AUTOMATIC TIMER KIT:

Power Supply: 115/120 VAC, 60 HZ, 1Ø

Minimum Switch Interval: 15 minutes

Run Modes: ON (continuous run), OFF (at all times),

TIMER (run at programmed intervals)

Maximum Switch Current: 16 amps

AQS-1/2, AQS-3/4 AQUASTATS

Thermostatic Switch Modes: OFF (open) at 120°F (48.9°C) and ON

(closed) at 100°F (37.8°C) operation of the aquastat is dependent on

ambient settings. In setting where there is excessive heat loss or in

installations where heat from the boiler or other components can affect

the aquastat, the actual on and off temperatures may vary.

Thermostatic Element: Bimetal, senses surface temperature of outside

diameter of pipe.

Pipe Size: AQS-

1/2 clips onto 1/2" copper pipe or 3/8" steel pipe (OD

of pipe 5/8"). AQS-

3/4 clips onto 3/4" copper pipe or 1/2" steel pipe

(OD of pipe 7/8").

Mounting: May be installed to sense temperature at the suction or

discharge pipe of the pump.

CONSTRUCTION MATERIALS

TC-1 AUTOMATIC TIMER KIT:

Timer Body: Noryl Plastic

AQS-1/2, AQS-3/4 AQUASTATS:

Thermostat Covering: Epoxy (Environmentally Sealed)

Pipe Clip: Stainless Steel

Sensing Element: Bimetal

Wire Leads: Insulated 18" (457mm) #18 AWG

APPROX. SHIPPING WEIGHT

TC-1: 11oz. (.31Kg)

AQS-1/2: 5oz. (.14Kg)

AQS-3/4: 5oz. (.14Kg)

SCHEDULE

MODEL

NUMBER

PART

NUMBER

SIZE

INCHES

VOLTAGE RATING

60 HZ 1Ø TAGGING INFORMATION QUANTITY

TC-1 113210 − 115-120

AQS-1/2 113223 1/2 115-120

AQS-3/4 113224 3/4 115-120

Bell & Gossett

Summary of content (2 pages)

PAGE 1
SUBMITTAL A-128D JOB: REPRESENTATIVE: UNIT TAG: ORDER NO. ENGINEER: SUBMITTED BY: CONTRACTOR: DATE: DATE: DATE: APPROVED BY: Automatic Timer Kit Model TC-1 Aquastat Models: AQS-1/2, AQS-3/4 DESCRIPTION TC-1 AUTOMATIC TIMER KIT - To increase the overall efficiency of a hot water recirculation system, the TC-1 timer control kit can be installed for use on any B&G NBF/NRF/SSF/PL and most 3-piece circulators.
PAGE 2
AUTOMATIC TIMER KIT AQUASTATS A-128D TIMER KIT DIMENSION IN INCHES (MM) TYPICAL SPECIFICATIONS Furnish and install as shown on the circulator plans and in accordance with the following specifications: AUTOMATIC TIMER KIT: 1. 2. 3. 4. The timer kit shall be UL approved. The timer kit shall be installed on the connection box of any Bell & Gossett NBF/NRF/SSF system lubricated circulator. The timer kit will be suitable for 115/120V, 60 HZ operation.